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12.2. Faults management and Troubleshooting
There are several events that can cause a Fault on the controller. Unlike the alarms, the faults are not user-selectable, they will always be considered and
actions will take place as follows:
Fault
Description (cause)
Actions
Acknowledge /
Cleared
Fault
log
Pop-up
Fault LED
Output
Unexpected
Transfer
The controller receives a
feedback/return from the
switch without sending
any order (auto or manu).
Also if loss feedback of
current position.
Mode stays the
same. Controller
will start retries if
position is unknown.
If a position is
reached, no retry
takes place.
Can also be
cleared through
display or through
RST - Reset Fault
input.
Yes
Yes,
"Unexpected
Transfer"
BLINKS
(priority)
FLT - Fault active
Failed to
Transfer
Position not reached
after an order sent by
controller (auto or manu)
or loss of feedback of the
new source after sending
a transfer command.
Mode stays the
same. Controller will
start retries.
Automatically
cleared if the
requested position
is reached or
cleared through
display or through
RST - Reset Fault
input.
Yes
Yes, "Failed to
transfer"
BLINKS
(priority)
FLT - Fault active
Max operation
per minutes
reached
If the controller performs
10 operations in less
than 1 minute (by default)
(automatic or controlled/
manual)
Mode stays the
same. During a
timer, the controller
will not do or allow
any operation.
Automatic after
the 1 minute
(configurable
through software)
(value is dynamic).
Yes
Yes, "Max
operations
per minutes
reached"
FIXED
(non-critical) FLT - Fault active
Max password
attempts
reached
User tries to enter a
profile password more
than X times set in the
maintenance menu (by
default 10 attempts)
Mode stays the
same. Can't enter
any password
during X time set
in the maintenance
menu (by default 2
minutes)
Automatic after
the set timeout
(maintenance
mode).
Yes
Yes, "Max
number of tries
reached, please
wait: X s"
FIXED
(non-critical) FLT - Fault active
Genset Failstart
Controller tries to start
a genset (as configured)
and after the genset start
delay, the genset doesn't
start (controller doesn't
see the source on)
Mode stays the
same. Genset start
relay remains active
unless other source
is available.
Automatic if
genset starts or
if source is set as
Main/Utility.
Yes
Yes, "Engine fail
to start"
BLINKS
(priority)
FLT - Fault active
External fault
If an input is selected as
FTE - External Fault and
becomes active
Switch goes
to position 0 /
center-off directly
without timers and
the mode is set
to Partial Inhibit
(genset starts if
needed).
Input mustn't be
active and reset by
user is requested
(by RST- Reset
Fault input or
through display.
Yes
Yes, "External
fault"
BLINKS
(priority)
FLT - Fault active
For faults with pop-up, the pop-up will be cleared when fault will be cleared or by pressing any button on the front face of the controller. The total number of
faults logged on the controller is dynamic, as the total number of “ alarms” is 100 (not including the events, which are 300) and uses a FIFO ordering.
To clear Faults through the display, it is possible inside the LOG/FAULTS menu with the option “PRESS OK TO CLEAR FAULTS”, using the configurator profile
password (1000). There is also a shortcut by holding the
button for 1.5s and validating on the pop-up that appears. If the fault is still active, it will be
inside the log “in progress” but the fault LED and output will be off. If the faults are not active any more, they will be logged in the “history” log. This way to
clear the fault will be automatically proposed by the controller through a pop-up:
FAULTS
FAILED TO TRANSFER
1,5 s -> RESET FAULTS